HTTP 400 returned for a HTTP request over 28 headers?

Mon Aug 30 19:38:12 CEST 2010

Not sure what I'm missing here; but it seems like Varnish is returning HTTP
400 when I have an HTTP request with over 28 headers.  Is this a
configuration limit?

------------------------------------------------------------------------------------------------------

*Exhibit A:  [HTTP 200 OK] 28 Request Headers (including the GET and HOST
headers):
*
root at machine>telnet localhost 7081
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
GET / HTTP/1.1
Host: localhost:7081
a: 1
b: 2
c: 3
d: 4
e: 5
f: 6
g: 7
h: 8
i: 9
j: 10
k: 11
l: 12
m: 13
n: 14
o: 15
p: 16
q: 17
r: 18
s: 19
t: 20
u: 21
v: 22
w: 23
x: 24
y: 25
z: 26

HTTP/1.1 200 OK
Server: Apache-Coyote/1.1
Set-Cookie: JSESSIONID=7F2827B4D4327E2AFC10E13D26B415EC; Path=/
Content-Type: text/html;charset=ISO-8859-1
Content-Length: 5
Date: Mon, 30 Aug 2010 17:30:28 GMT
X-Varnish: 1696828212
Age: 0
Via: 1.1 varnish
Connection: keep-alive

------------------------------------------------------------------------------------------------------

*Exhibit B:  [HTTP 400 BAD REQUEST] 29 Request Headers (including the GET
and HOST headers):
*
root at machine>telnet localhost 7081
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
GET / HTTP/1.1
Host: localhost:7081
a: 1
b: 2
c: 3
d: 4
e: 5
f: 6
g: 7
h: 8
i: 9
j: 10
k: 11
l: 12
m: 13
n: 14
o: 15
p: 16
q: 17
r: 18
s: 19
t: 20
u: 21
v: 22
w: 23
x: 24
y: 25
z: 26
aa: 1

*HTTP/1.1 400 Bad Request
*Server: Varnish
Retry-After: 0
Content-Type: text/html; charset=utf-8
Content-Length: 464
Date: Mon, 30 Aug 2010 17:30:34 GMT
X-Varnish: 1696828213
Age: 0
Via: 1.1 varnish
Connection: close

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
 <head>
   <title>400 Bad Request</title>
 </head>
 <body>
   <h1>Error 400 Bad Request</h1>
   <p>Bad Request</p>
   <h3>Guru Meditation:</h3>
   <p>XID: 1696828213</p>
   <hr>
   <address>
      <a href="http://www.varnish-cache.org/">Varnish cache server</a>
   </address>
 </body>
</html>
Connection closed by foreign host.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://www.varnish-cache.org/lists/pipermail/varnish-dev/attachments/20100830/c8b3081a/attachment-0003.html>